Lath-machine



UNITED STATES PATENT OFFTCE.

JOSIAH BLACK, OF MEMPHIS, TENNESSEE.

LATH-MACHINE.

Specification of Letters Patent No. 22,058, dated November 16, 18158.

To all whom it may concern:

Be it known that I, JosIAi-I BLACK, of the city of Memphis, in thecounty of Shelby and State of Tennessee, have invented a new andImproved Mode of Sawing Laths; and I do hereby declare that' thefollowing is a full and exact description thereof, reference being hadto the accompanying drawings and to the letters of reference markedthereon.

The nature of my invention upon which I claim a patent consists in thepeculiar combination of machinery for the purposes as set forth, whichmachine may be propelled by steam, water or horse power, reference beinghad to the accompanying drawings, in which-d Figure 1 is a top view ofthe machine. Fig. 2 is a side view of same. Fig. 3 is a vertical sectionon w m. Fig. 4 is a section view showing manner of reversing movement ofcarriage. Fig. 5 is a side view of the system of vertical saws. Fig. 6is a top view of the same. Fig. 7 is a section through shaft ofhorizontal saw.

Similar characters of reference in the several figures denote the samepart.

This machine is designed to act automatically from the reception of thebolt, until it is cut into laths.

F is the main frame.

C is the carriage in which the bolt is secured between dogs a c, andwhich is made to traverse the upper portion of the frame F by connectionof cords I) b with drum D on shaft c, the opposite rotation of the drumgiving the opposite movements of the carriage. This reverse of motion ofdrum D is effected as follows. The shaft c has its bearings upon theside of upright d of the vibrating table A, and carries a wheel Wprovided with both internal and external gear e c, as shown in Fig. 4,so that by the vibration of the table A about its connection z', withthe main frame, this double system of gearing will alternately engagethe pinion 7 on shaft g. And as this latter named shaftrevolvesconstantly in one direction, the motion of drum D will be changed eachtime table A moves about z'.

The movement of table A is effected from the rotation of shaft c asfollows: Attached to the table and capable of moving about point L is aweighted lever B. Under this lever is a system of jointed rodsconnecting the table A with the uprights E E of the main frame. Theserods being jointed at j y', and attached to uprights E by pins 7c 72,their attachment to table A being by pin Z. A lever B is turned upwardabout its attachment L., one of its points m will depress one of jointsy' and lift the other, and thus produce the movement of table Anecessary to alternate the gear meshing with pinion f The lever B isturned about L by being lifted by an arm G of shaft C. This arm is looseupon the shaft, and only moves with it when it encounters a stop on theshaft.

S S are the horizontal saws driven by bands, and S' S the vertical saws,upon shaft p held in frame H, capable of vertical adjustment by screw I.

The dogs a a are attached to levers g g', and move under guides r 1" bythe action of these levers. The levers g g are connected with a weightedlever B, above and below its fulcrum t (Fig. 2), so that when the leveris in position of drawing, the dogs will be projected forward into thebolt, and when turned in the opposite position the bolt will bereleased. This'movement of lever B is produced by notch u catching onprojection o of the frame as the carriage traverses. The bed under thecarriage when at the head is made up of the bars w, contained in a framemoved vertically by wedges 0c m driven forward by a screw y as seen inFigs. l and 3. This4 gives a mode of adjusting the thickness to be cutby horizontal saws S S. As the carriage moves in direction of arrow(Fig. l) after the cut has been made, the lever B will turn into itsother position by the encounter of notch u with projection c, droppingthe bolt upon bars w. Then as the motion reverses lever B will be forcedinto position of Fig. l by the movement of the carriage. This tightensthe dogs a a and the bolt is carried forward to the saws. In this mannerthe carriage is made to traverse back and forth until the bolt is cutinto laths. The dogs opening and permitting a new feed at thetermination of each backnism for opening and closing the dogs; the Wholebeing arranged for joint operation l0 substantially as and for thepurpose set forth.

JOSIAH BLACK. /Vitnesses M. H. BALDWIN, G. A. JUNKERMANN.

